ITEM NAME:10x Sealed-Gear Bass Guitar Tuning Peg Tuner Hex Threaded Bushing Ferrules Description: 10 Sets Hex Threaded Bushing & Ferrules & Mount Screws for Sealed-gear Guitar Tuning Peg Tuner Machine Heads Suit for Guitar, Box Guitar Materials: Iron, alloy Color: Chrome Size Chart: Screw Thread diameter: Approx. 2.5mm/ 0.098inch Screw Length: Approx. 9mm-11mm/ 0.35-0.43inch Package Includes: 10 Pieces Hex Threaded Bushing 10 Pieces Ferrules 10 Pieces Mounting Screw.10 Sets Hex Threaded Bushing & Ferrules & Mount Screws for Sealed-gear Guitar Tuning Peg Tuner Machine Heads. 10 Pieces Ferrules. 10 Pieces Hex Threaded Bushing. Suit for Guitar, Box Guitar. 10 Pieces Mounting Screw.